docs: def get_stored_metadata(self, temp_ver):
          """
          Retrieves the metadata for the given template version from the store
  
          Args:
              temp_ver (TemplateVersion): template version to retrieve the
                  metadata for
  
          Returns:
              dict: the metadata of the given template version
          """
          with open(self._prefixed('%s.metadata' % temp_ver.name)) as f:
              return json.load(f)